www.nada.com
www.kbb.com
Take the total cost of your acc.'s and add 1/3 of the cost you hav spent. That's about all you can get out of it your acc.s'/
The programmer will not work on the 06 or 07. They changed something. I have an 03 Hypertech that would not work in the 05 or 06. At the very least, I would swap out the tires/ rims. I'm sure someone local to you would swap for a short time if you gave them new stockers when you picked up your new ride. The dealer may even have a set for you to use.
It's a sweet truck for sure!!!!
With all of your stuff, I'd ask 40K and see what happens. With the 6K cash back on the 06's, it may be tougher to sell. however, 40K with the acc's you have is a very nice price if you can find someone who wants the ACC's you have done to it.
Good luck,
Tim.